Prince Philip, Duke of Edinburgh, was taken to hospital after feeling unwell

Prince Philip of Great Britain, Duke of Edinburgh, poses in a military uniform around 1990.

Prince Philip was born into the royal families of Greece and Denmark. His family left Greece in 1922 and settled in Paris after his uncle, King Constantine I, was overthrown.

Prince Philip is dressed for a Macbeth production while attending school in Scotland in July 1935.

Prince Philip is the youngest of five children and the only son. After his parents separated in 1930, he was sent to England and raised there by his maternal grandmother and uncle.

Prince Philip stayed with his fiancée, Princess Elizabeth, in July 1947. He had become a naturalized British citizen and an ordinary man, using the surname Mountbatten, an English translation of his mother’s maiden name. He was also an officer in the British Royal Navy and fought in World War II.

Prince Philip and Princess Elizabeth were married in November 1947.

Prince Philip plays in a village cricket match in July 1949.

Philip and Elizabeth keep their children Prince Charles and Princess Anne in August 1951.

Prince Philip and Princess Elizabeth dance in Ottawa in October 1951.

Prince Philip and Princess Elizabeth were on a Commonwealth tour when her father, King George VI, died on February 6, 1952. She was next in line for the throne.

Prince Philip waved from the balcony of Buckingham Palace after his wife was crowned in June 1953.

Prince Philip sailed during the August 1962 Cowes Regatta.

Prince Philip laughs as the Beatles fight for the Carl Alan Award he gave to the band in March 1964.

The Queen and Prince Philip, accompanied by the sons Prince Andrew and Prince Edward, waved from the balcony of Buckingham Palace during a parade in June 1964.

The royal couple return to Buckingham Palace after a ceremony in June 1965.

Queen and Prince Philip left Westminster in April 1966.

Prince Philip competes in a bicycle polo match in August 1967.

Prince Philip painted during the filming of the 1969 documentary “The Royal Family”.

In August 1972, Prince Philip and his daughter, Princess Anne, prepare a barbecue on the property of Balmoral Castle.

Queen and Prince Philip attended the Royal Windsor Horse Show in April 1976.

Prince Philip participated in the 1980 World Championship Driving Championships.

Prince Phillip fished in a Scottish lake in 1993.

Prince Phillip hunts at Sandringham Estate in 1994.

Prince Phillip toured the London Stock Exchange in 1998.

Former South African President Nelson Mandela speaks with Prince Philip in November 2000.

Prince Philip rides a motorcycle at the Royal Windsor Horse Show in May 2005.

Prince Philip, Duke of Edinburgh, is attending a Commonwealth Day in London in 2011.

Queen and Prince Philip are attending the annual Trooping the Color ceremony in June 2011.

Prince Philip visits Sherborne Abbey during his wife’s Diamond Jubilee tour in May 2012.

The Queen honors Prince Philip with New Zealand’s highest honor, the Order of New Zealand, at Buckingham Palace in June 2013.

Prince Philip visits the 1st Grenadier Guard Battalion in February 2014.

The royal couple arrives at the Royal Ascot horse races in June 2014.

Prince Philip signs the guest book at Hillsborough Castle in Belfast, Northern Ireland, in June 2014.

Prince Philip smiles as he visits an Auxiliary Air Force Squadron in Edinburgh, Scotland, in July 2015.

Prince Phillip and his nephew Prince Harry are taking part in the October 2015 Rugby World Cup final.

Queen and Prince Philip beckon to guests in June 2016, during the 90th anniversary celebrations.

Prince Philip feeds a banana to an elephant in Dunstable, England, in April 2017.

Prince Philip speaks with schoolchildren in May 2017 during a visit to the Lord’s Cricket in London. He opened the new Warner booth at the location.

Prince Philip makes his last public appearance before retiring in August 2017, attending a Royal Marines parade at Buckingham Palace. The event also marked the end of Philip’s 64 years as captain general, the ceremonial leader of the Royal Navy.

This portrait, painted by Ralph Heimans, shows Prince Philip in the Great Corridor of Windsor Castle. It was unveiled in December 2017.

Prince Philip is attending the wedding of his nephew Prince Harry and Meghan Markle in May 2018.

Prince Philip poses with the wedding party after Harry and Meghan’s wedding in May 2018.

Queen Elizabeth and Prince Philip participate in a polo match in Egham, England, in June 2018.

Prince Philip is speaking with Sir David Attenborough before the May 2019 Merit Order Lunch.

Queen and Prince Philip pose for a photo in June 2020, before Philip’s 99th birthday.

The Queen and Prince Philip are looking at a homemade birthday card that was given to them by their great-grandchildren Prince George, Princess Charlotte and Prince Louis in November 2020.